Answer:
as a fraction 1/4 as a decimal .25
Step-by-step explanation:
0.23 1/4, 22,0.29 is the answer to this
Answer:
z=3.8196
Step-by-step explanation:
-We notice that this is a normal distribution problem.
-Given the mean is $8500, standard deviation is $1200 , and n=350, the critical z-value using alpha=0.05 is calculated as:

Hence, the test statitic is z=3.8196
Answer:
7000
Step-by-step explanation:
nhi batunga